Best flowing standard BBF exhaust port

Which is the best flowing standard height Big block Ford exhaust port?

Why are you worrying about the exhaust flow?

Alvin wrote:Which is the best flowing standard height Big block Ford exhaust port?

At OEM height ... Probably the P-51 head.

Not worried, just curious. I just finished a Blue Thunder standard Ford port, and wondered what to expect.

BT is a good head

will the BT "BBC" out flow the BBF?

I have 1 of each here, bbc bolt pattern,and a bbf one, we flowd the bbc a few weeks ago,and when I get time we will do the bbf port in a few weeks

Alvin wrote:Not worried, just curious. I just finished a Blue Thunder standard Ford port, and wondered what to expect.

If you did a real good job, expect 250 cfm WITHOUT a test pipe.


Lee,

The Blue Thunder BBC bolt pattern exhaust will outflow the Ford bolt pattern exhaust by about 30 cfm. A good BT with the BBC pattern will flow 280 cfm WITHOUT a test pipe,,,,and a good BT with the Ford bolt pattern will flow around 250 cfm. Remember now, that BT has a total of three different exhaust ports available with their CJ heads. 1. Ford standard location, 2. Ford 5/8" raised port, and 3. BBC bolt pattern raised port.

Charlie Evans

c.evans wrote:

Alvin wrote:Not worried, just curious. I just finished a Blue Thunder standard Ford port, and wondered what to expect.

If you did a real good job, expect 250 cfm WITHOUT a test pipe.


Lee,

The Blue Thunder BBC bolt pattern exhaust will outflow the Ford bolt pattern exhaust by about 30 cfm. A good BT with the BBC pattern will flow 280 cfm WITHOUT a test pipe,,,,and a good BT with the Ford bolt pattern will flow around 250 cfm. Remember now, that BT has a total of three different exhaust ports available with their CJ heads. 1. Ford standard location, 2. Ford 5/8" raised port, and 3. BBC bolt pattern raised port.

Charlie Evans

thanks Charlie i have a truck puller friend looking for more ex flow with a stock type head so this may work for him.